You can look through some of these threads for info. Start a new thread and ask your question. But this tread is about error coin. Top right of home screen has a search venue. They are good photos aren't they. I have learn to use my phone for coin photos and no one complains about them. https://www.cointalk.com/search/5270545/?q=photos&o=date&c[title_only]=1
No ragged clip or notch on OP's coin. So if a planchet is cut half-way through a ragged blow-hole it becomes a ragged clip or notch because the whole blow-hole is not included in just one planchet. Is this a correct statement in your understanding of this type of error ?